Search for tag: "physical sciences"

Sam Kean - The Periodic Table: A Treasure Trove of Passion, Adventure, Betrayal, and Obsession

Why did Gandhi hate iodine? Why did the Japanese kill Godzilla with missiles made of cadmium? How did radium nearly ruin Marie Curie’s reputation? And why did tellurium lead to the most bizarre…

From  Kathryn Gentilello 2 Months ago 7 views 0  

John Baez - Mathematical Mysteries of the Periodic Table

Why do atoms behave the way they do? Why do electrons form “shells,” as seen in the periodic table? Why does the first shell hold 2 electrons, the second 8, and the third 18: twice the…

From  Kathryn Gentilello 3 Months ago 10 views 0  

Michael A. Filler - Celebrating Silicon: Its Success, Hidden History, and Next Act

The history of silicon is usually told as a history of electronic materials and devices. However, it is better told as a history of manufacturing innovation. This talk will take a journey through the…

From  Kathryn Gentilello 4 Months ago 13 views 0  

How the Universe Made the Elements in the Periodic Table - James Sowell

The creation of the elements in the universe took billions of years and required various processes.The first few minutes of the big bang produced only hydrogen (H) and helium (He). No new elements…

From  Kathryn Gentilello 5 Months ago 26 views 0  

Jennifer Curtis, Chandra Raman, Rick Trebino - Celebration of 2018 Physics Nobel Prize: Lighting the way with microscopic tractor beams and sculpted laser pulse

The 2018 Nobel Prize in Physics recognizes two breakthrough inventions in laser physics. The first, optical tweezers, allows scientist and engineers to use lasers like the tractor beams of Star Trek…

From  Kathryn Gentilello 8 Months ago 12 views 0  

Elisabetta Matsumoto - Non-Euclidean Virtual Reality

The 2016 confirmation of Einstein's prediction of gravitational waves has put the spotlight back on the importance of curvature for the physics of the universe. While the ability of mass to…

From  Kathryn Gentilello 8 Months ago 10 views 0  

Michael Ford - Implications of Moral Organizational Behavior for Employee Beliefs, Motivation, and Well-Being

Workers are often assumed to construe their organizations as entities and develop a reciprocal social exchange relationship resembling that with other humans. To the extent that this assumption holds…

From  Kathryn Gentilello 9 Months ago 13 views 0  

Seth Shostak - When Will We Find E.T. and What Happens If We Do?

Are we alone in the universe? The scientific hunt for extraterrestrial intelligence is now well into its fifth decade, and we still haven’t discovered any cosmic company. Could all this mean…

From  Kathryn Gentilello 9 Months ago 18 views 0  

Computer Science in Six-Tenths of a Second: What Happens After Hitting ENTER in a Google Search - Lance Fortnow

What is computer science? Ask Google or Alexa, and you'll get an answer like "the study of the principles and use of computers." That doesn't really capture the breadth of the…

From  Kathryn Gentilello A year ago 14 views 0  

Ordered and disordered motion in dense active materials - Ludovic Berthier

We discuss how the non-equilibrium driving forces introduced by the natural biological activity or by physical self-propulsion mechanisms generically affect the structure, dynamics and phase behavior…

From  Kathryn Gentilello A year ago 44 views 0  

Local and global avalanches in sheared granular materials - Aghil Abed Zadeh

We perform a stick-slip experiment to characterize avalanches for granular materials. In our experiment, a constant speed stage pulls a slider which rests on a vertical bed of circular photoelastic…

From  Kathryn Gentilello A year ago 32 views 0  

Exploiting disorder - Sid Nagel

We are taught to understand solids by considering ideal crystals. This approach becomes untenable as the amount of disorder increases; for a glass with no well-defined long-range order, a crystal is…

From  Kathryn Gentilello A year ago 12 views 0  

The Topological Character of Smectics - Randy Kamien

Though the systematic use of topology to understand defects in ordered matter is now nearly 50 years old, the original work failed to completely characterize systems with broken translational order,…

From  Kathryn Gentilello A year ago 19 views 0  

Symmetry Breaking during the Synthesis of Nanoparticles - Younan Xia

Symmetry breaking is a ubiquitous phenomenon that occurs spontaneously when a system is subjected to variations in size and/or perturbations in terms of thermodynamic parameters. As a stochastic…

From  Kathryn Gentilello A year ago 52 views 0  

Fracturing of marginally stable structures: fiber networks and topological metamaterials - Xiaoming Mao

When conventional brittle materials break, long cracks form due to stress focusing at crack tips: a phenomenon explained by Griffith in the 1920s. In this talk, we will discuss two types of systems…

From  Kathryn Gentilello A year ago 23 views 0  

Mechanics of Active Networks – Lessons from Fire Ant Aggregations - Shankar Lalitha Sridhar

Biological assemblies in nature are seen as active matter due to their ability to perform intelligent collective motion based on neighbor interactions and sometimes without any centralized control…

From  Kathryn Gentilello A year ago 7 views 0